Here's a breakdown:
* Magma: Molten rock found beneath the Earth's surface.
* Lava: Magma that has erupted onto the Earth's surface.
The process of rock melting and becoming magma is influenced by several factors:
* Temperature: The deeper you go into the Earth, the hotter it gets. At a certain depth, the temperature becomes high enough to melt rock.
* Pressure: The immense pressure deep within the Earth can also cause rocks to melt.
* Water content: The presence of water can lower the melting point of rocks.
Magma plays a crucial role in volcanic activity and the formation of many igneous rocks.